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Live macrophages loaded with Fe₃O₄ and sulfasalazine for ferroptosis and photothermal therapy of rheumatoid arthritis.

ABSTRACT: Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by the infiltration of inflammatory cells and proliferation of synovial cells. It can cause cartilage and bone damage as well as disability and is regarded as an incurable chronic disease. Available therapies cannot prevent the development of diseases due to the high toxicity of the therapeutic agents and the inefficient drug delivery. Ferroptosis, an iron-dependent manner of lipid peroxidative cell death, indicates great potential for RA therapy due to ability to damage the infiltrated inflammatory cells and proliferated fibroblast-like synoviocytes. Here, we use macrophages as vector to deliver Fe₃O₄ nanoparticles and sulfasalazine (SSZ) for ferroptosis and photothermal therapy of RA. The inherent property of migration towards the inflamed joints under the guidance of inflammatory factors enables macrophages to targetedly deliver the payload into the RA. Upon the irradiation of the near infrared light, the Fe₃O₄ nanoparticles convert the light into heat to damage the proliferated synovium. Meanwhile, the iron released from Fe₃O₄ nanoparticles works with SSZ to generate synergetic ferroptosis effect. The resident inflammatory cells and proliferated synovium are efficiently damaged by the ferroptosis and photothermal effect, showing pronounced therapeutic effect for RA.

SUBMITTER: Ruan L

PROVIDER: S-EPMC10788618 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature

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Live macrophages loaded with Fe<sub>3</sub>O<sub>4</sub> and sulfasalazine for ferroptosis and photothermal therapy of rheumatoid arthritis.

Ruan Li L Cai Xinxi X Qian Rui R Bei Shifang S Wu Lin L Cao Jin J Shen Song S

Materials today. Bio 20231220

Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by the infiltration of inflammatory cells and proliferation of synovial cells. It can cause cartilage and bone damage as well as disability and is regarded as an incurable chronic disease. Available therapies cannot prevent the development of diseases due to the high toxicity of the therapeutic agents and the inefficient drug delivery. Ferroptosis, an iron-dependent manner of lipid peroxidative cell death, indicates great p ...[more]

PMID: 38226012

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Project description:BackgroundRheumatoid arthritis (RA) is a chronic autoimmune disorder characterized by inflammation and gradual joint degeneration, resulting in function disability. Recently, ferroptosis, a novel form of regulated cell death that involves iron-dependent lipid peroxidation, has been implicated in the pathogenesis of RA. However, the underlying molecular mechanisms and key genes involved in ferroptosis in RA remain largely unknown.MethodsThe GSE134420 and GSE77298 datasets were downloaded and DEGs were identified using R software. The DEGs were then mapped to the dataset of 619 ferroptosis-related genes obtained from the GeneCards database. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were conducted to investigate the possible biological functions. Protein-protein interaction (PPI) networks were constructed to identify the hub genes. The relationship between hub genes and immune infiltration was estimated using the CIBERSORT algorithms. Gene Set Enrichment Analysis (GSEA) was used to explore the underlying signaling pathways of hub genes. Genome-wide association studies (GWAS) analysis was performed to confirm the pathogenic regions of the hub genes. RcisTarget and Gene-motif ranking databases were used to identify transcription factors (TFs) associated with the hub genes. The miRcode databases were utilized to construct the microRNA (miRNA)-messenger RNA (mRNA) network. Single-cell analysis was utilized to cluster cells and display the expression of hub genes in cell clusters. Finally, the expression and potential mechanism of hub genes were investigated in human and experimental samples.ResultsThree hub genes PTGS2, ENO1, and GRN highly associated with ferroptosis were identified. Four pathogenic genes HLA-B, MIF, PSTPIP, TLR1 were identified that were significantly and positively correlated with the expression levels of hub genes. The results of the GSEA showed that the hub genes were significantly enriched in pathways related to immunity, lysosome, phagocytosis and infection. ENO1 and PTGS2 were enriched in the TF-binding motif of cisbp_M5493. The hub genes were validated in experimental and patient samples and highly level of ENO1 expression was found to inhibit ACO1, which reduces ferroptosis in proliferating fibroblast-like synoviocytes (FLS).ConclusionPTGS2, ENO1 and GRN were identified and validated as potential ferroptosis-related biomarkers. Our work first revealed that ENO1 is highly expressed in RA synovium and that ferroptosis may be regulated by the ENO1-ACO1 axis, advancing the understanding of the underlying ferroptosis-related mechanisms of synovial proliferation and providing potential diagnostic and therapeutic targets for RA.

Project description:BackgroundExtracts of the medicinal plant Tripterygium wilfordii Hook F (TwHF) have been used in China for centuries to treat a spectrum of inflammatory diseases.ObjectiveTo compare the benefits and side effects of TwHF extract with those of sulfasalazine for the treatment of active rheumatoid arthritis.DesignRandomized, controlled trial. A computer-generated code with random, permuted blocks was used to assign treatment.Setting2 U.S. academic centers (National Institutes of Health, Bethesda, Maryland, and University of Texas, Dallas, Texas) and 9 rheumatology subspecialty clinics (in Dallas and Austin, Texas; Tampa and Fort Lauderdale, Florida; Arlington, Virginia; Duncanville, Pennsylvania; Wheaton and Greenbelt, Maryland; and Lansing, Michigan).Patients121 patients with active rheumatoid arthritis and 6 or more painful and swollen joints.InterventionTwHF extract, 60 mg 3 times daily, or sulfasalazine, 1 g twice daily. Patients could continue stable doses of oral prednisone or nonsteroidal anti-inflammatory drugs but had to stop taking disease-modifying antirheumatic drugs at least 28 days before randomization.MeasurementsThe primary outcome was the rate of achievement of 20% improvement in the American College of Rheumatology criteria (ACR 20) at 24 weeks. Secondary end points were safety; radiographic scores of joint damage; and serum levels of interleukin-6, cholesterol, cortisol, and adrenocorticotropic hormone.ResultsOutcome data were available for only 62 patients at 24 weeks. In a mixed-model analysis that imputed data for patients who dropped out, 65.0% (95% CI, 51.6% to 76.9%) of the TwHF group and 32.8% (CI, 21.3% to 46.0%) of the sulfasalazine group met the ACR 20 response criteria (P=0.001). Patients receiving TwHF also had significantly higher response rates for ACR 50 and ACR 70 in mixed-model analyses. Analyses of only completers showed similar significant differences between the treatment groups. Significant improvement was demonstrated in all individual components of the ACR response, including the Health Assessment Questionnaire disability score. Interleukin-6 levels rapidly and significantly decreased in the TwHF group. Although not statistically significant, radiographic progression was lower in the TwHF group. The frequency of adverse events was similar in both groups.LimitationsOnly 62% and 41% of patients continued receiving TwHF extract and sulfasalazine, respectively, during the 24 weeks of the study. Long-term outcome data were not collected on participants who discontinued treatment.ConclusionIn patients who continued treatment for 24 weeks and could also use stable oral prednisone and nonsteroidal anti-inflammatory drugs, attainment of the ACR 20 response criteria was significantly greater with TwHF extract than with sulfasalazine.

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Live macrophages loaded with Fe₃O₄ and sulfasalazine for ferroptosis and photothermal therapy of rheumatoid arthritis.

Publications

Live macrophages loaded with Fe<sub>3</sub>O<sub>4</sub> and sulfasalazine for ferroptosis and photothermal therapy of rheumatoid arthritis.

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Live macrophages loaded with Fe3O4 and sulfasalazine for ferroptosis and photothermal therapy of rheumatoid arthritis.

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Live macrophages loaded with Fe<sub>3</sub>O<sub>4</sub> and sulfasalazine for ferroptosis and photothermal therapy of rheumatoid arthritis.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

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Live macrophages loaded with Fe₃O₄ and sulfasalazine for ferroptosis and photothermal therapy of rheumatoid arthritis.